How to Bleed SRAM Mineral Oil Brakes (Maven, DB8)

Overview

SRAM’s transition to mineral oil began with the DB8 and reached full maturity with the release of the Maven braking platform. Mineral oil is not hygroscopic, which means it does not absorb moisture. As a result, these brakes require less frequent bleeding and tend to maintain consistent lever feel longer.

These new systems use SRAM’s mineral-oil bleed kit, which is not compatible with DOT kits.

Key Takeaways

  • SRAM Maven & DB8 use mineral oil, not DOT
  • These systems bleed differently from DOT brakes
  • Mineral oil is less corrosive and more stable
  • Bleeding intervals are longer (12–24 months)
  • DB8 uses a simplified lever-bleed process

Required Tools & Materials

  • SRAM Mineral Oil Bleed Kit
  • SRAM Mineral Oil
  • SRAM Maven bleed adapter (if applicable)
  • T10 Torx
  • Bleed blocks
  • Isopropyl alcohol
  • Clean workspace

Step-by-Step Bleed Process (Mineral Oil Systems)

1. Prepare the Bike

  1. Level the brake lever (horizontal).
  2. Remove wheel and pads.
  3. Insert bleed block.
  4. Clean lever and caliper.

2. Prepare the Syringe or Reservoir

Mineral oil systems use a simpler one-syringe process.

  1. Fill syringe or reservoir with SRAM mineral oil.
  2. Remove all air bubbles.

3. Lever-Side Bleed Setup

  1. Open the lever bleed screw.
  2. Thread the bleed syringe into the lever.

Unlike DOT systems, mineral-oil SRAM brakes often bleed primarily from the lever down.

4. Push Fluid Downward

  1. Push fluid from the lever toward the caliper.
  2. Tap hose to dislodge bubbles.
  3. Allow old fluid to exit through the caliper (if opened).

5. Optional: Caliper Bleed (Maven Only)

The Maven system may require:

  • Additional caliper purging
  • Removing micro-bubbles from the lower system

This involves:

  1. Opening caliper bleed screw.
  2. Letting fluid flow naturally.
  3. Closing once bubble-free.

6. Finalize the Lever Bleed

  1. Close lever bleed screw.
  2. Remove syringe.
  3. Wipe excess mineral oil.

7. Reassembly

  1. Wipe rotors and caliper.
  2. Install pads.
  3. Install wheel.
  4. Pump lever until firm.

Troubleshooting (Mineral Oil Systems)

Soft Lever

  • Air in lever → repeat lever bleed

Weak Braking

  • Contaminated pads
  • Rotor contamination

Lever Pulls to Bar

  • Severe aeration → full system purge

DOT vs Mineral Oil Comparison

FeatureDOT Brakes (Code/G2/Level)Mineral Oil Brakes (Maven/DB8)
Fluid TypeDOT 4 / DOT 5.1SRAM Mineral Oil
MaintenanceHigherLower
Corrosion RiskHighLow
Feel StabilityChanges over timeMore consistent
System ComplexityMore complexSimpler
PerformanceStrong “> aggressive riding”Strong “> consistency & ease of use”

Verdict: Mineral Oil Brake Systems

SRAM’s mineral-oil brakes represent a simpler, more maintenance-friendly option for riders who want consistent performance with minimal upkeep. The Maven in particular delivers gravity-ready stopping power with the benefits of mineral oil’s stability.

These systems are easier to bleed, safer to handle, and ideal for riders who prefer reduced maintenance intervals.

Final Take

In 2026, SRAM supports two distinct hydraulic systems—DOT and mineral oil. Both deliver excellent performance when serviced correctly. DOT systems remain the choice for many performance riders, while mineral oil options provide a cleaner, more stable experience with fewer service intervals.

Both bleed styles are simple once you learn the workflow.

FAQ

Which SRAM brakes use mineral oil?

SRAM Maven and SRAM DB8 use mineral oil. All other SRAM brakes use DOT.

How often should I bleed SRAM mineral-oil brakes?

Every 12–24 months or whenever lever feel changes.

Is mineral oil safer than DOT fluid?

Yes. It is less corrosive and does not absorb moisture over time.

Can I use a DOT bleed kit on mineral oil brakes?

No. DOT and mineral-oil systems require completely different bleed kits and fluids.

Do Maven and DB8 bleed differently?

A little. DB8 mainly requires a lever bleed; Maven may need an additional caliper purge due to higher-volume pistons.

Can I top off mineral oil without a full bleed?

Yes. Especially on DB8. But full bleeds ensure consistent performance.

Related Content:

Why Trust This Guide

BestBikeBrands is built by lifelong cyclists with decades of real-world experience — in the shop, on the trail, and behind the wrench. Our goal is simple: to help riders choose the best bikes and gear with confidence, backed by expert insights and hands-on testing. Learn more about us →

Scroll to Top